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Wed, 27 Jan 2021 23:16:43 +0000 Date: Wed, 27 Jan 2021 19:16:41 -0400 From: Jason Gunthorpe To: "Saleem, Shiraz" CC: Leon Romanovsky , "dledford@redhat.com" , "kuba@kernel.org" , "davem@davemloft.net" , "linux-rdma@vger.kernel.org" , "gregkh@linuxfoundation.org" , "netdev@vger.kernel.org" , "Ertman, David M" , "Nguyen, Anthony L" , "Ismail, Mustafa" Subject: Re: [PATCH 07/22] RDMA/irdma: Register an auxiliary driver and implement private channel OPs Message-ID: <20210127231641.GS4147@nvidia.com> References: <20210122234827.1353-1-shiraz.saleem@intel.com> <20210122234827.1353-8-shiraz.saleem@intel.com> <20210125184248.GS4147@nvidia.com> <99895f7c10a2473c84a105f46c7ef498@intel.com> <20210126005928.GF4147@nvidia.com> <031c2675aff248bd9c78fada059b5c02@intel.com> <20210127121847.GK1053290@unreal> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: X-ClientProxiedBy: BL0PR02CA0006.namprd02.prod.outlook.com (2603:10b6:207:3c::19) To DM6PR12MB3834.namprd12.prod.outlook.com (2603:10b6:5:14a::12) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from mlx.ziepe.ca (142.162.115.133) by BL0PR02CA0006.namprd02.prod.outlook.com (2603:10b6:207:3c::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3805.16 via Frontend Transport; Wed, 27 Jan 2021 23:16:42 +0000 Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1l4u3F-007qeL-Sg; Wed, 27 Jan 2021 19:16:41 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1611789405; bh=qhT9AuE+3d3BiQZPxdM6+fgbIjMT5lgYfPlP7dTCPnc=; h=ARC-Seal:ARC-Message-Signature:ARC-Authentication-Results:Date: From:To:CC:Subject:Message-ID:References:Content-Type: Content-Disposition:In-Reply-To:X-ClientProxiedBy:MIME-Version: X-MS-Exchange-MessageSentRepresentingType; b=mJ/LXBnngIhhxVogNXBVre+e16yp38FdkAnnASK6LZN4im4vYz+7XtAU4X/jXcGGp JKF1vk8VBJk2Bq4yD2E5zgQDDCLtRDEoQBtfclK4A42+cHnnBB1LICsaC7m6EAha3R M3Yga6HGdA38q4IfUUSWZk2PkKyccqOxJ99hVTWikJsW1bF691GEYh8vaVmRJxXPWq CMBu1QkINOB6opPDH6t+pcltYJh1I9w0Y5BcM0smK272IlPt8CQ88lri+MEkE+jcPF JSvjDEeYZk3RXLDhXzfsjibm1jBPzN2apXJ5qVP5SZ8tyfz7BRsgHkWxFzIgroU1hb bcAj7YWvmvRAQ== Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Wed, Jan 27, 2021 at 10:17:56PM +0000, Saleem, Shiraz wrote: > Even with another core PCI driver, there still needs to be private > communication channel between the aux rdma driver and this PCI > driver to pass things like QoS updates. Data pushed from the core driver to its aux drivers should either be done through new callbacks in a struct device_driver or by having a notifier chain scheme from the core driver. Jason